Development of Low-Cost Manufacturing Process for 1, 2, 4-Butanetriol (BT)

Upgraded telemeter requirements for TBMD (Theater Ballistic Missile Defense) post-launch monitoring will include a new tactical mode for defensive operations during armed conflicts. Multiple Standard Missiles from multiple platforms may be launched nearlysimultaneously. System analyses have indicated that under this scenario and current IRIG PCM/FM channel allocation guidelines, unacceptable adjacent channel interference will degrade critical telemetry communications.Due to the explosion in commercial wireless communications, further spectral allocations for military telemetry are not foreseen, and current allocations are even being reduced. Thus, improvement in the spectral efficiency of tactical telemetry signals iswarranted. Data compression, forward error correction, high-order modulations, and dynamic multiple access techniques can all be applied, as part of a thorough and detailed system analysis to make better use of the available spectrum. In addition to NovaEngineering's substantial experience in solving complex communications problems, the TBMD program would certainly benefit from our Hypermod transmitters and receivers. This innovative technology utilizes SOQPSK and multi-h CPM modulation to provide a twoto three-fold increase in spectral efficiency over conventional PCM/FM signalling; prototypes exist today. Detection efficiency approximately equals that of PCM/FM and all modulation schemes have constant envelopes, allowing use of non-linear RF PA's.A set of operational and transmitter requirements developed in Phase I will transition to a high performance telemetry transmitter for NSWC applications, with additional direct application to other DoD flight test ranges and industrial users.